const toString = Object.prototype.toString;

export function is(val, type) {
    return toString.call(val) === `[object ${type}]`;
}

export function isObject(val) {
    return val !== null && is(val, 'Object');
}

export function isArray(val) {
    return val && Array.isArray(val);
}

export function isString(val) {
    return is(val, 'String');
}

export function isEmpty(val){
    if (isNullOrUnDef(val)) return true;
    if (isArray(val) || isString(val)) {
        return val.length === 0;
    }

    if (val instanceof Map || val instanceof Set) {
        return val.size === 0;
    }

    if (isObject(val)) {
        return Object.keys(val).length === 0;
    }

    return false;
}

export function isNotEmpty(val) {
    return !isEmpty(val);
}

export function isDate(val) {
    return is(val, 'Date');
}

export function isNull(val) {
    return val === null;
}

export function isUnDef(val) {
    return val === undefined;
}

// export function isNullAndUnDef(val) {
//     return isUnDef(val) && isNull(val);
// }

//
export function isNullOrUnDef(val) {
    return isUnDef(val) || isNull(val);
}

export function isBlank(val) {
    return isUnDef(val) || val === '';
}

export function isNumber(val) {
    return is(val, 'Number');
}

export function isFunction(val) {
    return typeof val === 'function';
}

export function isPromise(val) {
    return is(val, 'Promise') && isObject(val) && isFunction(val.then) && isFunction(val.catch);
}



export function isBoolean(val) {
    return is(val, 'Boolean');
}

export function isRegExp(val) {
    return is(val, 'RegExp');
}

export function isWindow(val) {
    return typeof window !== 'undefined' && is(val, 'Window');
}

export function isElement(val) {
    return isObject(val) && !!val.tagName;
}

export function isMap(val) {
    return is(val, 'Map');
}

export const isServer = typeof window === 'undefined';

export const isClient = !isServer;

export function isUrl(path) {
    const reg =
    /^(((^https?:(?:\/\/)?)(?:[-;:&=+$,\w]+@)?[A-Za-z0-9.-]+(?::\d+)?|(?:www.|[-;:&=+$,\w]+@)[A-Za-z0-9.-]+)((?:\/[+~%/.\w-_]*)?(\/#\/)?(?:\/[+~%/.\w-_]*)?\??(?:[-+=&;%@.\w_]*)#?(?:[\w]*))?)$/;
    return reg.test(path);
}

export function isValidArray(arr) {

    if (!arr) {
        return false;
    }

    if (!(arr instanceof Array)) {
        console.warn(`[utils/utils/isValidArray] -> args is must be an array, but given ${typeof arr}`);
        return false;
    }

    return arr.length > 0;
}